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Add Watermark

Stamp text or image watermarks onto your PDF pages securely offline.

Drag & drop your files here, or click to browse

.PDF

Max file size: 20MB per job

No account required
🔒 Processed locally, secure
📦 Max size 20MB
For this supported browser-based tool, files are processed locally in your browser on your device.

How your files are handled

This supported tool runs in your browser memory.

Processing stops when you close or refresh the tab. The output file is generated locally for download.

Best for private documents, contracts, IDs, forms, scans and internal PDFs.

Reading files...

Please do not close this window while we compile your files.

Reading files...
Processing pages...
Creating output file...
Ready to download!
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Success! Your file is converted.

Your document has been compiled and is ready for download.

Download PDF
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📋 How to use in 3 steps

  1. 1

    Select the PDF file you wish to secure.

  2. 2

    Enter your text watermark or upload your company logo image.

  3. 3

    Configure opacity, rotation, and size, then download the protected PDF.

📁 Supported formats

Fully supports formats: PDF.

💡 Tips to avoid font corruption

Always use standard Unicode fonts like Times New Roman, Arial, or Calibri. If using custom fonts, embed them in your document before saving.

⚠️ Common errors & solutions

⚡ Password-locked files

Please remove password protection from the file before uploading so the system can read and convert it.

⚡ Corrupted or incorrect formats

Make sure your file opens correctly on your device before uploading.

Frequently Asked Questions

Can I use an image as a watermark?
Yes, you can upload a transparent PNG logo and stamp it muddled over your pages.
Is the watermark permanent?
Yes, the watermark bytes are baked directly into the PDF structure, making it hard to remove.